/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: #FFFFFF;
    color: #333333;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 触摸优化 */
a, button, .tab-btn, .accordion-header {
    -webkit-tap-highlight-color: rgba(255, 36, 66, 0.1);
    touch-action: manipulation;
}

/* 防止双击缩放 */
button, a {
    user-select: none;
    -webkit-user-select: none;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #FFFFFF;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-brand .logo {
    height: 40px;
    width: auto;
    display: block;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: #333333;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #ff2442;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #ff2442;
}

.btn-download {
    background: #ff2442;
    color: #FFFFFF;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
}

.btn-download:hover {
    background: #e61e3a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 36, 66, 0.3);
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 100%;
    height: 3px;
    background: #333333;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
    background: #ff2442;
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
    background: #ff2442;
}

/* 首屏区域 */
.hero {
    margin-top: 70px;
    padding: 100px 0;
    background: linear-gradient(135deg, #fff5f7 0%, #FFFFFF 100%);
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-left {
    flex: 1;
}

.hero-title {
    font-size: 48px;
    color: #333333;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    color: #666666;
    margin-bottom: 40px;
}

.download-buttons {
    display: flex;
    gap: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #ff2442;
    color: #FFFFFF;
}

.btn-primary:hover {
    background: #e61e3a;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 36, 66, 0.3);
}

.btn .icon {
    width: 20px;
    height: 20px;
}

.hero-right {
    flex: 1;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: linear-gradient(135deg, #4f4f4f 0%, #ff6b7a 100%);
    border-radius: 30px;
    padding: 8px;
    box-shadow: 0 20px 60px rgba(255, 36, 66, 0.3);
    animation: float 3s ease-in-out infinite;
    display: flex;
    align-items: center;
    justify-content: center;
}

.phone-mockup img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* 特色功能区 */
.features {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    color: #333333;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.feature-card {
    text-align: center;
    padding: 40px 30px;
    border-radius: 20px;
    background: #FFFFFF;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 22px;
    color: #333333;
    margin-bottom: 15px;
}

.feature-card p {
    font-size: 16px;
    color: #666666;
    line-height: 1.8;
}

/* 用户评价区 */
.testimonials {
    padding: 100px 0;
    background: #f8f9fa;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: #666666;
    margin-top: -40px;
    margin-bottom: 50px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: #FFFFFF;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.user-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ff2442 0%, #ff6b7a 100%);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
    flex-shrink: 0;
}

.user-info {
    flex: 1;
}

.user-name {
    font-size: 16px;
    color: #333333;
    margin-bottom: 5px;
    font-weight: 600;
}

.rating {
    display: flex;
    gap: 2px;
}

.star {
    color: #ffa500;
    font-size: 14px;
}

.testimonial-time {
    font-size: 13px;
    color: #999999;
    flex-shrink: 0;
}

.testimonial-content {
    font-size: 15px;
    color: #666666;
    line-height: 1.8;
}

/* 好名展示区 */
.names-showcase {
    padding: 100px 0;
    background: #f8f9fa;
}

.tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
}

.tab-btn {
    background: #FFFFFF;
    border: 2px solid #e0e0e0;
    padding: 15px 40px;
    font-size: 18px;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #333333;
}

.tab-btn:hover {
    border-color: #ff2442;
    color: #ff2442;
}

.tab-btn.active {
    background: #ff2442;
    border-color: #ff2442;
    color: #FFFFFF;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.names-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.name-card {
    background: #FFFFFF;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.name-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.name-card h3 {
    font-size: 24px;
    color: #ff2442;
    margin-bottom: 15px;
}

.gender {
    font-size: 16px;
    color: #666666;
    font-weight: normal;
}

.name-card p {
    font-size: 15px;
    color: #666666;
    line-height: 1.8;
}

/* FAQ问答区 */
.faq {
    padding: 100px 0;
}

.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    background: #FFFFFF;
    margin-bottom: 15px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.accordion-header {
    width: 100%;
    padding: 25px 30px;
    background: #FFFFFF;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 18px;
    color: #333333;
    transition: all 0.3s ease;
}

.accordion-header:hover {
    background: #fff5f7;
}

.accordion-icon {
    font-size: 24px;
    color: #ff2442;
    transition: transform 0.3s ease;
}

.accordion-item.active .accordion-icon {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-item.active .accordion-content {
    max-height: 200px;
}

.accordion-content p {
    padding: 0 30px 25px;
    color: #666666;
    font-size: 16px;
    line-height: 1.8;
}

/* CTA下载区 */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #ff2442 0%, #ff6b7a 100%);
    text-align: center;
}

.cta-title {
    font-size: 36px;
    color: #FFFFFF;
    margin-bottom: 60px;
}

.qr-codes {
    display: flex;
    justify-content: center;
    gap: 80px;
}

.qr-item {
    text-align: center;
}

.qr-placeholder {
    width: 200px;
    height: 200px;
    background: #FFFFFF;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.qr-placeholder p {
    color: #666666;
    font-size: 14px;
    line-height: 1.6;
}

.qr-item > p {
    color: #FFFFFF;
    font-size: 18px;
    font-weight: 500;
}

/* 页脚 */
.footer {
    background: #333333;
    padding: 30px 0;
    text-align: center;
}

.footer p {
    color: #FFFFFF;
    font-size: 14px;
    margin: 10px 0;
}

.footer-links {
    margin-top: 15px;
}

.footer-links a {
    color: #FFFFFF;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 14px;
}

.footer-links a:hover {
    color: #ff2442;
}

.footer-links span {
    color: #666666;
    margin: 0 10px;
}

.footer-links a:active {
    color: #ffffff;
}

/* 响应式设计 */

/* 平板横屏 (1024px - 1200px) */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 30px;
    }

    .hero-title {
        font-size: 42px;
    }

    .features-grid {
        gap: 30px;
    }
}

/* 平板竖屏 (768px - 1024px) */
@media (max-width: 1024px) {
    .nav-menu {
        gap: 20px;
        font-size: 15px;
    }

    .hero-content {
        gap: 40px;
    }

    .hero-title {
        font-size: 38px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .features-grid,
    .names-grid,
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .phone-mockup {
        width: 280px;
        height: 560px;
    }

    .section-title {
        font-size: 32px;
    }

    .qr-codes {
        gap: 60px;
    }
}

/* 手机横屏和小平板 (640px - 768px) */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: row;
        justify-content: space-between;
        padding: 10px 20px;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: #FFFFFF;
        flex-direction: column;
        padding: 80px 30px 30px;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        overflow-y: auto;
        gap: 0;
        z-index: 1000;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu li {
        width: 100%;
        margin-bottom: 10px;
    }

    .nav-link {
        display: block;
        padding: 15px 20px;
        font-size: 16px;
        border-radius: 10px;
        transition: all 0.3s ease;
    }

    .nav-link:hover,
    .nav-link.active {
        background: #fff5f7;
        color: #ff2442;
    }

    .nav-link.active::after {
        display: none;
    }

    .btn-download {
        display: block;
        width: 100%;
        text-align: center;
        padding: 15px 20px;
        font-size: 16px;
        border-radius: 10px;
    }

    .hero {
        margin-top: 65px;
        padding: 60px 0;
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 17px;
    }

    .download-buttons {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .phone-mockup {
        width: 260px;
        height: 520px;
    }

    .features,
    .testimonials,
    .names-showcase,
    .faq,
    .cta {
        padding: 60px 0;
    }

    .section-title {
        font-size: 28px;
        margin-bottom: 40px;
    }

    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .feature-card,
    .testimonial-card {
        padding: 30px 25px;
    }

    .section-subtitle {
        font-size: 16px;
        margin-top: -30px;
    }

    .tabs {
        flex-direction: column;
        gap: 15px;
    }

    .tab-btn {
        width: 100%;
        max-width: 300px;
        padding: 12px 30px;
        font-size: 16px;
    }

    .names-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .name-card {
        padding: 25px;
    }

    .accordion-header {
        padding: 20px;
        font-size: 16px;
    }

    .accordion-content p {
        padding: 0 20px 20px;
        font-size: 15px;
    }

    .cta-title {
        font-size: 28px;
        margin-bottom: 40px;
    }

    .qr-codes {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }

    .qr-placeholder {
        width: 180px;
        height: 180px;
    }
}

/* 手机竖屏 (< 640px) */
@media (max-width: 640px) {
    .container {
        padding: 0 15px;
    }

    .navbar .container {
        padding: 10px 15px;
    }

    .nav-brand .logo {
        height: 32px;
    }

    .nav-menu {
        gap: 8px 12px;
    }

    .nav-link {
        font-size: 13px;
    }

    .btn-download {
        padding: 6px 14px;
        font-size: 13px;
    }

    .hero {
        margin-top: 60px;
        padding: 40px 0;
    }

    .hero-title {
        font-size: 26px;
        margin-bottom: 15px;
    }

    .hero-subtitle {
        font-size: 15px;
        margin-bottom: 30px;
    }

    .download-buttons {
        gap: 12px;
    }

    .btn {
        padding: 12px 25px;
        font-size: 14px;
    }

    .phone-mockup {
        width: 220px;
        height: 440px;
    }

    .features,
    .testimonials,
    .names-showcase,
    .faq,
    .cta {
        padding: 50px 0;
    }

    .section-title {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .feature-card,
    .testimonial-card {
        padding: 25px 20px;
    }

    .section-subtitle {
        font-size: 15px;
        margin-top: -20px;
        padding: 0 10px;
    }

    .user-avatar {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }

    .testimonial-content {
        font-size: 14px;
    }

    .feature-icon {
        font-size: 50px;
        margin-bottom: 15px;
    }

    .feature-card h3 {
        font-size: 20px;
        margin-bottom: 12px;
    }

    .feature-card p {
        font-size: 15px;
    }

    .tab-btn {
        padding: 10px 25px;
        font-size: 15px;
    }

    .name-card {
        padding: 20px;
    }

    .name-card h3 {
        font-size: 22px;
        margin-bottom: 12px;
    }

    .name-card p {
        font-size: 14px;
    }

    .accordion-header {
        padding: 18px 15px;
        font-size: 15px;
    }

    .accordion-icon {
        font-size: 20px;
    }

    .accordion-content p {
        padding: 0 15px 18px;
        font-size: 14px;
    }

    .cta-title {
        font-size: 24px;
        margin-bottom: 35px;
        padding: 0 15px;
    }

    .qr-placeholder {
        width: 160px;
        height: 160px;
    }

    .qr-placeholder p {
        font-size: 12px;
    }

    .qr-item > p {
        font-size: 16px;
    }

    .footer {
        padding: 20px 0;
    }

    .footer p {
        font-size: 12px;
    }
}

/* 超小屏手机 (< 375px) */
@media (max-width: 375px) {
    .hero-title {
        font-size: 22px;
    }

    .hero-subtitle {
        font-size: 14px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 13px;
    }

    .btn .icon {
        width: 16px;
        height: 16px;
    }

    .phone-mockup {
        width: 200px;
        height: 400px;
    }

    .section-title {
        font-size: 22px;
    }

    .feature-icon {
        font-size: 45px;
    }

    .feature-card h3 {
        font-size: 18px;
    }

    .feature-card p,
    .name-card p {
        font-size: 14px;
    }

    .tab-btn {
        font-size: 14px;
        padding: 10px 20px;
    }

    .name-card h3 {
        font-size: 20px;
    }

    .accordion-header {
        font-size: 14px;
        padding: 15px 12px;
    }

    .cta-title {
        font-size: 20px;
    }

    .qr-placeholder {
        width: 140px;
        height: 140px;
    }
}